Let's push a little further. you decide to analyze your sample again via silica gel tlc using a new solvent system. in this new solvent system, the carboxylic acid in your sample is found to have an r f value of 0.66. if you add a small quantity of triethylamine (a base) to the solvent system, keeping the solvent polarity the same, what would you expect the r f for the carboxylic acid to be under the new conditions? think carefully about what the carboxylic acid will do once it is in contact with the base. (1 pt)

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole